Thore, H 1984 14 July first. Snake weighed 22.5g; SV 715mm; (continued) tail, 315 mm; ♀. Remains of the anal (tail, hind legs, post. of body) weighed ≈ 5 g; groin to heel, ≈ 30 mm. 15 July At 0930 h found the Natrix mura on ECC in the same place, head down in coils; bright overcast; 22/30. At 0945 h Bothrops asper ch 4 is out in a wide, open coil & of the bromeliad Sunny, snake is partly in sun; 24/30. It seems to me that this snake usually has a tight, sheltered coil at night and a broad, exposed coil in the daytime, although a few nights ago Michael Fozden saw her in the open at x 0300h. At 0950 h I took some photos and saw her "swat" at a fly by flinching skin and/or muscles of the body a few centimeters anterior to the anus. Snake is still obviously gravid but the swelling is not yet concentrated near the cloaca. At 1000 h snake is same but all in shade; 26/30. At 1030 h all is same; 26/30. At 1047 h, the B. asper ch 2 in the hole of bark above the Río Puerto Viejo is as before; 23/30. At 1415h we released the old B. asper ch 5 at the capture site which is w/in ≈ 100 m of her former sitings. Put the radio in her w/out difficulty, and noted two injuries: a superficial skin cut behind the head which I undoubtedly